Net Ionic Equations and Electrolytes

The video tutorial explains how to write a balanced net ionic equation for the reaction between nitric acid and lithium hydroxide. It begins with balancing the molecular equation, identifying the states of each substance, and then splitting strong electrolytes into their ions to form the complete ionic equation. Spectator ions are removed to derive the net ionic equation, ensuring charge and mass balance. The tutorial concludes with a summary of the process.

What is the first step in writing a net ionic equation?

• Split strong electrolytes into ions

• Write the states of substances

• Balance the molecular equation

• Identify spectator ions

Why is it important to know the state of each substance in a reaction?

• To calculate the reaction rate

• To identify the temperature of the reaction

• To determine the color of the solution

• To know which substances will dissociate in water

Which of the following is a characteristic of strong acids?

• They completely dissociate into ions in water

• They are insoluble in water

• They are weak electrolytes

• They do not dissociate in water

What is the charge of the nitrate ion (NO3)?

• 1+

• 2+

• 2-

• 1-

What is the purpose of splitting strong electrolytes into ions?

• To identify the spectator ions

• To determine the reaction rate

• To balance the molecular equation

• To form the complete ionic equation

What are spectator ions?

• Ions that do not change during the reaction

• Ions that participate in the reaction

• Ions that form a precipitate

• Ions that change their charge

Why do we cross out spectator ions in a net ionic equation?

• They are not involved in the reaction

• They are insoluble

• They change the charge balance

• They form a new compound

What ensures that a net ionic equation is correctly balanced?

• Equal number of molecules on both sides

• Balanced charges on both sides

• Equal number of ions on both sides

• Equal number of atoms on both sides

What is the net ionic equation for the reaction between nitric acid and lithium hydroxide?

• H2O → H+ + OH-

• HNO3 + LiOH → LiNO3 + H2O

• Li+ + NO3- → LiNO3

• H+ + OH- → H2O

What is the result of balancing charges in a net ionic equation?

• A charged compound

• A precipitate

• An unbalanced equation

• A neutral compound